This is the 3rd time this happens. I get a call from another department "hey, tell your guys we have food overhere... we are celebrating (whatever) and there's enough here for everybody". So we get up, get overthere, zeroed on the food, and as soon as we are taking the plate, this lady looks at us and says out loud "since we are celebrating John Dow's (whatever), let's let him pick up his food first". This make us look like gredy lets-eat-free freeloaders.
Now we are mad, we don't eat anything and we are ordering lotsa a pizza. We don't need handouts from anybody, we went because we were invited. We usually take the food and come back to our area because we do have work to do and can't spend to much time socializing. We can pay for our food.
Like I said, this is the 3rd time we get the same number, same lady every time.
From now on, invitations to this kind of gatherings will be ignored by our department. Thanks for the free-food offerings, but honestly and respectfully, you can shove it.